Neurology · LIVE

Disease Steps (Hohol 1995)

Disease Steps

Return the caller-assigned Hohol 1995 Disease Steps integer 0-6 with the published description. magent does not examine gait.

LIVE $0.005 USDC GET /api/calc/disease_steps

Markdown: /docs/disease-steps.md · Canonical: https://magentlab.com/docs/disease-steps

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Return the caller-assigned Hohol 1995 Disease Steps integer 0-6 with the published description. magent does not examine gait.

When to use

When an agent already has a Hohol 1995 Disease Step 0-6 as assigned by the caller and needs the published description. magent does not examine gait, assign a step from findings, map to EDSS, or use later Disease Steps Plus.

When not to use

• Not a medical device. magent does not examine gait.
• Not an MS diagnosis. The caller assigns Disease Steps 0-6. magent does not examine the patient or walk 25 feet.
• Hohol 1995 integer steps 0-6 only. 0.5 half-steps are not in that paper. Unclassifiable U is published but not scored. Not later Disease Steps Plus.
• Not EDSS. Not a treatment order.

Formula

Disease Steps = caller-assigned integer 0-6 (Hohol 1995); max 6; 0.5 half-steps and unclassifiable U are not scored

Citation

Title

Disease steps in multiple sclerosis: a simple approach to evaluate disease progression

Authors

Hohol MJ, Orav EJ, Weiner HL

Source

Neurology. 1995;45(2):251-255

DOI

10.1212/wnl.45.2.251

Worked example

Also searched as

• Disease Steps
• Hohol Disease Steps
• MS Disease Steps
• Disease Steps 0-6
• Hohol 1995 MS
• multiple sclerosis disability steps
• early cane late cane
• MS ambulation steps

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/disease_steps?step=0

Full URL: https://api.magentlab.com/api/calc/disease_steps?step=0

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/disease_steps?step=0"

Parameters

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/disease_steps Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

• 1 to 25 items. Each item uses the same keys as the GET query parameters.
• POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
• The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
• HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
• Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
• x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "step": "0"
    },
    {
      "step": "0"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/disease_steps",
  "items": [
    {
      "description": "Normal",
      "components": [
        {
          "factor": "step",
          "points": 0,
          "present": true
        }
      ],
      "step": 0,
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Hohol MJ, Orav EJ, Weiner HL",
        "doi": "10.1212/wnl.45.2.251",
        "id": "hohol-1995",
        "pmid": "7854521",
        "source": "Neurology. 1995;45(2):251-255",
        "title": "Disease steps in multiple sclerosis: a simple approach to evaluate disease progression"
      },
      "formula": "disease_steps",
      "formula_expression": "Disease Steps = caller-assigned integer 0-6 (Hohol 1995); max 6; 0.5 half-steps and unclassifiable U are not scored",
      "max_score": 6,
      "score": 0
    },
    {
      "description": "Normal",
      "components": [
        {
          "factor": "step",
          "points": 0,
          "present": true
        }
      ],
      "step": 0,
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Hohol MJ, Orav EJ, Weiner HL",
        "doi": "10.1212/wnl.45.2.251",
        "id": "hohol-1995",
        "pmid": "7854521",
        "source": "Neurology. 1995;45(2):251-255",
        "title": "Disease steps in multiple sclerosis: a simple approach to evaluate disease progression"
      },
      "formula": "disease_steps",
      "formula_expression": "Disease Steps = caller-assigned integer 0-6 (Hohol 1995); max 6; 0.5 half-steps and unclassifiable U are not scored",
      "max_score": 6,
      "score": 0
    }
  ]
}

Response

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "description": "Normal",
  "components": [
    {
      "factor": "step",
      "points": 0,
      "present": true
    }
  ],
  "step": 0,
  "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "citation": {
    "authors": "Hohol MJ, Orav EJ, Weiner HL",
    "doi": "10.1212/wnl.45.2.251",
    "id": "hohol-1995",
    "pmid": "7854521",
    "source": "Neurology. 1995;45(2):251-255",
    "title": "Disease steps in multiple sclerosis: a simple approach to evaluate disease progression"
  },
  "formula": "disease_steps",
  "formula_expression": "Disease Steps = caller-assigned integer 0-6 (Hohol 1995); max 6; 0.5 half-steps and unclassifiable U are not scored",
  "max_score": 6,
  "score": 0
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

Related tools

• Modified Hoehn and Yahr — Echo the caller-assigned Goetz 2004 Table 1 modified Hoehn and Yahr stage (1.0, 1.5, 2.0, 2.5, 3.0, 4.0, or 5.0) with the published description. No stage 0. magent does not examine the patient.
• Modified Rankin — Return the van Swieten 1988 modified Rankin handicap grade 0-5 from a caller-assigned integer, with the published grade wording.
• Barthel Index — Sum ten caller-assigned Mahoney 1965 Barthel Index item points and return the published 0-100 total.

Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

• HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
• exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
• HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
• Execution is timeout-bounded and concurrency-capped.
• Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.